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Sine, Cosine and Tangent

Opposite & adjacent sides and SOHCAHTOA of angles

The Sine, Cosine and Tangent functions express the ratios of sides of a right triangle. See below for greater detail
In Greater Depth:
  • Sine
  • Cosine
  • Tangent
    •
    SOHCAHTOA practice problems: Practice Identifying Opposite & Adjacent Sides of Angles Other Related Links: Inverse Sine, Cosine and Tangent | Sine to Find Area of Triangle
    Sine Function
    The sine of an angle is always the ratio of the (opposite side)/(hypotenuse).
      Sine of ABC=AC /AB
          (opposite side)/(hypotenuse)

    Cosine Function
    The cosine of an angle is always the ratio of the (adjacent side/ hypotenuse)
    The cosine of ABC =CB/AB
    (adjacent side)/(hypotenuse)

    Tangent Function
    The tangent of an angle is always the ratio of the (opposite side)/(adjacent side)
    The tangent of ABC =AC/ CB
    In Greater Depth:
  • Sine
  • Cosine
  • Tangent
    •  Practice Applying SOHCAHTOA
    Practice Identifying Adjacent and Opposite Sides
    Identify the opposite and adjacent sides of YZX.
    Answer

     

    Identify the side that is opposite of IHU and the side that is adjacent to IHU.
    Answer
    Sine, cosine, tangent practice problems: Easy | Medium | Hard In Greater Depth:Sine | Cosine |  Tangent
    Practice Identifying Opposite & Adjacent Sides of Angles Other Related Links: Inverse Sine, Cosine and Tangent | Sine to Find Area of Triangle
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